Polishing-machine.



No. 680,576. Patented Aug. l3, I90I.

a. A. ENSIGN.

POLISHING MACHINE.

(Application filed Apr. 23, 1901.) (No Model.) 4 Sheets-Sheet l.

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No. 680,576. Patented Aug..l3, I90l.

a. A. ENSIGN.

PDLISHING MAGHINE.

(Application filed Apr. 28, 1901.)

(No Model.) 4 Sheets-Sheet 2. (1 .2, F W

f 1" g F F w afeol eflll' 725711 No. 680,576. Patented Aug. I3, I90l. G. A. ENSIGN.

' POLISHING MACHINE.

(Application fllqd Apr. 23, 1901.)

4 SheetsSheet 3.

(No Model.)

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(INVENTOH 620/- @JQE 1151 22 By 7 7 L m WW WITNESSES No. 680,576. Patented Aug. l3, l90l. G. A. ENSiGN.

POLISHING MACHINE.

(Application filed Apr. 28, 1901.;

no Model.) 4 Shaots-Sheet 4.

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DEFIANCE MACHINE lVORKS, OF SAME PLACE.

POLISHING-MACHINE.

fiPECIFIGATIQIT forming part of Letters Patent No. 680,576, dated August 13, 1901.

Application filed April 23, 1901. Serial No. 57,108. (No model.)

Defiance, in the county of Defiance and State of Ohio, have invented a new and Improved Polishing-Machine, of which the following is a full, clear, and exact description.

The invention relates to woodworking-machines; and its objectis to provide a new and improved polishin'gmachine which is simple and durable in construction, very effective and automatic in operation, and designed for rapidly and accurately polishing or finishing handles for brooms, rakes, and other implements, or curtain-poles, pikepoles, and other round work of any desired length.

The invention consists of novel features and parts and combinations of the same, as will be fully described hereinafter and then pointed out in the claims. A practical embodiment of the invention is represented in the accompanying drawings, forming a part of thisspecification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a perspective view of the improvement. Fig. 2 is a transverse section of the same on the line 2 2 in Fig. 3. Fig. 3 is an enlarged longitudinal sectional elevation of the same. Fig. 4 is an end elevation of one of the feed mechanisms withthe casing removed. Fig. 5 is a like view of part of the same, showing means for moving the feedrollers in unison to and from the work; and Fig. .6 is an enlarged transverse section of the device for adjusting the polishing-belts.

A suitably-constructed bed A is formed at or near its middle with a transverse opening A for the passage of transversely-extending and oppositely-arranged belts B B, on opposite sides of which are arranged feeding de-' vices O O, alike inconstruct-ion and of which the feeding device 0 serves to rotate the unfinished work D and feed the same between the working faces of the polishing belts,

while the other device O takes hold of the finished work and finally draws it from the belts and discharges the work from the machine. The belts B B pass over the lower or driven pulleys E E, the upper or adjusting pulleys F F, and the intermediate pulleys G G. The lower or driven pulleys E E' are secured on shafts E E respectively, journaled in suitable hearings on the opposite sides of the bed A, and on the shaft E is secured a pulley E connected by belt with other machinery for imparting a rotary motion to the shaft E and this rotary motion of'the shaft E is transmitted to the other shaft E by pulleys E E and a belt E, as is plainly shown in Fig. 1. Thus when the shaft E is rotated both shafts E E are turned at the same time and their pulleysEE impart a traveling motion to the polishingbelts B B.

The upper or adjusting pulleys F F are journaled in bearings F each formed with a screw-rod F screwing in a nut F of a bearingF ,att-acl1ed to the shaft G on G or which the pulleys G G are mounted to rotate loosely. The shafts G2 G are journaled in suitable bearings in the bed A, and their outer ends carry segmental gear-wheels G G in mesh with each other, so that when one shaft is rocked a like rocking motion is given to the other shaft, so that both supports for the pulleys F Fare similarly rocked toward or from each other to move the runs of the belts B B toward or from each other, accordingto the diameter of the work under treatment. The segmental gear-wheels G G are formed with arms G G extending vertically and connected by a spring connection consisting,

essentially, of a spring H, attached at one end to the arm G and engaged at its other end by a screw-rod H, adjustably held in the arm G6 by a nut H The arms G G are loosely connected with each other by a limiting-link H made in sections H H connected with each other by a turnbuckle H for lengthening or shortening the link according to the size of the work under treatment. The outer ends of the sections H H? are formed with elongated slots engaging pins G in the arms G G so that said arms are limited in their outward or inward swinging movement by the link H Each of the feeding devices .0 0 consists, essentially, of a revoluble memberl, preferably in the form of a disk and having its hollow hub I" journaled in suitable bearings A attached to the top of the bed A, as is plainly shown in Figs. 1 and 3. On the hub I is socured a pulley 1 connected by belt with other machinery for imparting a rotary motion to the revoluble member I, it being understood that the work under treatment is passed through the hollow hub I, as indicated in Figs. 1 and 3. The revoluble member I is provided on its face with sets of bearings I for pivot-pins J, on which are fulcrumed arms K K, carrying shafts K K supporting rolls L L, respectively, between which passes the work D, and which rollers rotate bodily with the member I and are turned with their shafts K K so that the work D is not only turned, but is also at the same time caused to travel forward in the direction of the arrow a. (See Fig. 3.)

In order to impart the desired turning motion to the shafts K K and the rolls L L thereon, the outer ends of said shafts K K are provided with pinions N N,respectively, in mesh with intermediate gear-wheels N in mesh with pinions N secured on the faces of arched bevel gear-wheels O, in mesh with opposite sides of a master bevel gear-wheel 0, formed 'on the face of a pulley O mounted to rotate loosely on the hub I of the corresponding member I of the feeding device C or C. The pulleys O for the two feeding devices 0 C are connected by belts with other machinery, so that a rotary motion is given to the said pulleys and the master gearwheel Oindependent of the motion given to the revoluble members I, and consequently the rotary motion of each master gear-wheel O is transmitted by the bevel gear-weeels O to the pinions N which in turn, by the intermediate gear-wheels N rotate the gearwheels N N, and consequently the shafts K and K and the rolls L L. By the gearing described the rolls LL are turned in unison, so as to feed the work D forward in the direction of the arrow as, as previously mentioned, and as the rolls L L turn bodily with the revoluble members I it is evident that the work is turned at the time it is fed forward.

In order to securely hold the rolls L L of each feeding device C or O in proper contact with the work D, the arms K K are provided with friction-rollers P P, engaging inclines P P mounted to slide in bearings 1, arranged on the face of the revoluble member I. (See Figs. 3, 4, and 5.) The inclines P P are formed with racks P P in mesh with opposite sides of a gear-wheel P mounted to rotate loosely and centrally on the member I, so that the two inclines P P move in unison when a slidin motion is given to one of them. Springs Q Q pull on the racks P P and hold the inclines P P in firm engagement with the friction-rollers P P to swing the arms K K toward each other, and thus hold the rolls L L in firm contact with the work D. The springs Q Q are connected with screwrods Q adj ustably held in bearings J 5 on the member I to allow of adjusting the tension of the springs Q Q, and thereby hold the rolls L L with more or less force in contact with the work D.

By the arrangement described Work D of di Eerent diameters can be readily engaged by the rolls L L and turned and fed forward by the same in the manner above described, it being understood that the rolls L L are preferably formed at their peripheral surfaces with V-shaped angular grooves for readily accommodating work of different diameters.

The operation is as follows: "When the several parts are in position and a handle, for instance, is passed by an operator through the hollow hub I of the feeding device 0, as shown in Fig. 3, and the forward end of this handle finally comes between the rolls L L, then the latter turn said handle and 'feed it forward through a central opening in a casing inclosingthe mechanism on the front face of the revoluble member I of the feeding device O. The work now passes between the working faces of the polishing-belts B B at a point near the upper pulleys F F, as will be readily understood by reference to Fig. 2, and as the handle is turned and moved forward it is evident that the polishing-faces of the belts polish the handle, and thereby give a very high finish to the same. The forwardly-moving handle finally passes through a central opening and into the casing Igwhich incloses the mechanism on the face of the revoluble memberI of the feeding device C, and then the finished end of the handle passes between the rolls L L of the feeding device 0 and is fed forward in unison with the motion given to the handle by the rolls L L of the feeding device 0. Thus the handle is fed forward and finally passed through the hub I of the feeding device 0, the rear end of the handle finally leaving the feeding device 0 and being slowly fed forward by the feeding device 0 and finally discharged at the forward end of-the machine. (See Fig. 1.) By the arrangement described handles can be fed through the machine one immediately behind the other, so that a large number of handles can be turned out in a comparatively short time. I

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent- I 1. A polishing-machine having a feeding device for the work, and comprising a revoluble member, arms pivoted at one end to the said member, revoluble feed-rolls journaled in the free ends of said arms, and a gearing for rotating said rolls independent of said revoluble member, as set forth.

2. A polishing-machine having a feeding device for the work, and comprising a revoluble member, arms pivoted at one end to the said member, revoluble feed-rolls journaled in the free ends of said arms, a gearing for rotating said rolls independent of said revoluble member, and spring-pressed means engaging the pivoted arms to hold said rolls in frictional contact with the work and feeding it forward at thesame time, as set forth.

3/ A polishing-machine, having a feeding device, comprising a revolublemember, arms pivoted at their inner ends to said member,-

revoluble feed-rolls mounted in the free ends of the arms, gearing for rotating said rolls independently of said revoluble member, sliding and spring-pressed arms engaging the said pivoted arms, and means for causing the said sliding arms to move in unison, as set forth.

4. A polishing-machine having a feeding device for the work, and comprising a revolule member, arms pivoted thereon, revoluble feed-rolls journaled in said arms, and a gearing for rotating said rolls independent of said revoluble member, said gearing comprising a driven master gear-wheel, a pair of gearwheels in mesh with said master gear-wheel at opposite sides thereof, said pair of gearwheels being mounted to rotate loosely on the pivots for said arms, pinions on said pair of gear-wheels, and roller-pinions on the shafts of said feed-rolls and geared with'said firstnamed pinions by intermediate gear-wheels, as set forth.

5. A polishing-machine having a feeding device for the work, and comprising a revoluble member, arms pivoted thereon, revoluble feed-rolls journaled in said arms, a gearing for rotating said rolls independent of said revoluble member, and spring-pressed means for holding said rolls in frictional contact with the work and feeding it forward at the same time, said means comprising friction-rollers on said arms, and spring-pressed inclines movable on said revoluble member, as set forth.

6. A polishing-machine having a feeding device for the work, and comprising a revoluble member, arms pivoted thereon,.revoluble feed-rolls journaled in said arms, a gearing for rotating said rolls independent of said revoluble member, and spring-pressed means for holding said rolls in frictional contact with the work and feeding it forward at the same time, said means comprising friction-rollers on said arms, spring-pressed inclines movable on said revoluble member, and means connecting said inclines with each other so that movement given to one incline is transmitted to the other incline but in an opposite direction, as set forth.

'7. A polishing-machine having a feeding device for the work, and comprising a revoluble member, arms pivoted thereon, revoluble feed-rolls journaled in said arms, a gearing for rotating said rolls independent of said revoluble member,spring-pressed means for holding said rolls in frictional contact with the work and feeding it forward at the same time, said means comprising friction-rollers on said arms, spring-pressed inclines movable on said revoluble member, a gear-wheel rotating centrally and loosely on said revoluble member, and racks on said inclines and inmesh with said last-named gear-wheel, as set forth.

8. A polishing-machine,having oppositely disposed polishing-belts, driven pulleys over which pass said belts, adjusting-pulleys over which said belts also pass, parallel rockshafts,supports for the adjusting-pulleys carried by said shafts, and means whereby the shafts will simultaneously be rocked, as set forth. 4

9. A polishing-machine having a polishingbelt, a driven pulley over which passes said belt, an adjusting-pulley over which passes the belt, an intermediate pulley over which passes one run of the belt, a support for said adjusting-pulley, a rock-shaft on which said support is secured and on which turns loosely said intermediate pulley, and means for rocking said shaft and moving the working portion of the run of the belt toward or from the belt, as set forth.

10. A polishing-machinehavingoppositelydisposed traveling polishing-belts, driven pulleys over which pass said belts, adjustingpulleys over which pass said belts, interm e-' diate pulleys over which pass adjacent runs of said belts, supports for said adjustingpulleys, rock-shafts on which said supports are secured and on which turn loosely said intermediate pulleys, and means for rocking said shafts and moving the adjacentruns of the belts toward or from the work, as set forth.

ll. A polishing-machinehavingoppositely disposed traveling polishing -belts, driven pulleys over which pass said belts, adjustingpulleys over which pass said belts, intermediate pulleys over which pass adjacent runs of said belts, supports for said adjustingpulleys, rock-shafts on which said supports are secured and on which turn loosely said intermediate pulleys, and means for rocking said shafts and moving the adjacent runs of belts toward or from the work, said means comprising arms on said shafts, and a yielding adjustable connection between said arms, as set forth.

12. A polishing-machine having oppositelydisposed traveling polishing -belts, driven pulleys over which pass said belts, adjustingpulleys over which pass said belts, intermediate pulleys over which pass adjacent runs of said belts, supports for said adj usting-pulleys, rock-shafts on which said supports are secured and on which turn loosely said intermediate pulleys, and means for rocking said shafts and moving the adjacent runs of the belts toward or from the work, said means comprising arms on said shafts, a yielding adjustable connection between said arms, and an adjustable link connecting the arms with each other, as set forth.

13. A polishing-machinehaving oppositelydisposed traveling polishing belts, driven pulleys over which pass said belts, adjustingpulleys over which pass said belts, intermediate pulleys over which pass adjacent runs of said belts, supports for said adjusting-pulleys, rock-shafts on which said supports are secured and on which turn loosely said intermediate pulleys, and means for rocking said shafts and moving the adjacent runs of the belts toward or from the work, a gearing for connecting said shafts with each other to rock the same in unison, arms secured on said rock-shafts, and an adjustable yielding connection between said arms, as set forth.

14. A polishing-machine having oppositelydisposed traveling polishing-belts,driven pulleys over which pass said belts, adjustingpulleys over which pass said belts, intermediate pulleys over which pass adjacent runs of said belts, supports for said adj listing-pulleys, rock-shafts on which said supports are secured and on which turn loosely said intermediate pulleys,means for rocking said shafts and moving the adjacent runs of the belts toward or from the work, a gearing for connecting said shafts with each other to rock the same in unison, arms secured on said rock-shafts, and an adjustable yielding connection between said arms, said connection comprising a spring secured to one of the arms, and a rod adjustable on the other arm and connected with said spring, as set forth.

- 15, A polishing-machine having a polishing-belt, a driven pulley over which passes said belt, an adjusting-pulley over which passes the belt, an intermediate pulley over which passes one run of the belt, a support for said adjusting-pulley, a rock-shaft on which said support is secured and on which turns loosely said intermediate pulley, and means for rocking said shaft and moving the working portion of the run of the belt toward or from the belt, said support being adjustable in the direction of its length to tighten the belt, as set forth.

1 6. A polishing-machine, comprising oppositely-disposed polishing-belts between which pass the work, positively-actuated feeding devices in axial alinement on opposite sides of said belts, one of said devices serving to feed the unfinished work to and between the belts, and the other device receiving the finished work and discharging it from the machine, each of said feeding devices comprising driven rolls, pivoted arms in which the rolls are journaled, a driven revoluble member on which the arms arepivoted, and a gearing driven independently of said member and connected with said rolls, to rotate the same in unison, as set forth.

17. In a polishing-machine, oppositely-disposed polishing-belts, driven pulleys over which the belts pass, adjusting-pulleys over which said belts also pass, parallel rock-shafts geared together, supports for the adjustingpulleys carried by the said shafts, and an adj ustable connection between the said shafts, as set forth.

18. In apolishing-machine, oppositely-disposed polishing-belts, driven pulleys over which the belts pass, adj usting-pulleys over which said belts also pass, parallel rock-shat ts geared together, supports for the adjustingpulleys carried by the said rock-shafts, arms projecting from said shafts, and yielding and adjustable connection between the said arms, as set forth.

19. In a polishing-machine, a revoluble member, arms pivoted to the said member, revoluble rollers mounted in the said arms, means for operating the feed-rollers independently of said revoluble member, sliding and spring-pressed racks provided with inclines engaging the said arms, and a loose gear-wheel meshing with said racks, as set forth.

20. In a polishing-machine, a revoluble member, arms pivoted at one end to said member and provided with friction-rollers, revoluble feed-rollers mounted in the free ends of the arms, means for operating the feed-rollers independently of the revoluble member, sliding racks provided with inclines engaging the friction-rollers of the. arms, a spring connected 'with one end of each rack, and a loose gear-wheel meshing with said racks, as set forth.

In testimony whereof .I have signed my name to this specification in the presence of two subscribing witnesses.

GEORGE A. ENSIGN.

Witnesses:

GEO. W. DEATRIOK, J OSEPH BAUER. 

